Improvement in elastic hangings for revolving-hammers



` G. H. BOND. ELAs'TIc HANGING For. REvoLvzm-G HAMM-Ens. A No. 177,883.Patented May 23,1876.

NJFETEHS, FMOTOvLITHDGRAFHER. WASHINGTON, D c,

UNTED STATES PATENT OFFICE.

GOLDSBURY H. POND, OF.NEW YORK, N. Y.

IMPROVEMENT IN ELASTIC HANGINGS FOR REVCLVING-HAMMERS.

Specification forming part of Letters Patent No. l 77,883, dated May 23,1876; application tiled May 11, 1876.

To all 'whom t may concern:

Be it known that I', GoLDsBURY H. POND, of the city and State ot' NewYork, hav/ein# vent-ed a Ooncentric and Elastic Hanging for RevolvingHammers, Picks, Plows, Qutters, Beaters, Thrashers, the following is aspecification:

The object of my invention is to provide all machines which give orreceive a blow, or are liable to any jarring from the working parts,with elastic journal-boxes, and with springs to regulate the position ofthe working parts and keep them from breaking, by preventing thejar orthe strain ot' the ing the main metallic parts of the machine, thisbeing eectually accomplished by placing rubber springs aroundthejournals, and then bracing them up and holding them to their properplaces by spiral and rubber springs. Revolving hammers thus tixed arepractical and economical for breaking and pulverizing ores and stone,and there is hardly a limit to the Work of one of these machines whenthe hammers are, provided with the elastichanging. Without the elastichanging the revolv.

ing hammers are worthless as rock-pulverizers, and have been known tobreak three out of the four hammer handles or Shanks made out offour-inch square Norway iron, in running twenty minutes. v

In the drawings, making a part of this speciiication, Figure l is asectional view and Fig. 2 is a side and ing hammer E E. D is the pillupon which they swing. O is themetallic tube or ring on which the rubberspring B is placed, and then tted into the box A or outer ring. The boxA is then placed in position in the mortise in the disks H H, and heldthere by the spiral spring G. The rubber springs F F are at- `tached toeachv heel or lower end of the hamand are drawn tight enough tomer-handle,

keep the heads of the hammers in a working position.

and Journals, ot' which blow from reach-- sectional view, of the revolv`The hammers move round to the die J, (whichis heldin place by the wedgeM,) strike against it, swing in toward the center and pass over it, andso on, and any ores placedbet'ore the die are crushed and pulverized,and thrown out over the end ot' the machine.

The revol ving picks, steam cutters and plows, thrashing-machines, hempand flax breakers, trip hammers, are all arranged in the same wayas therevolving hammers, with the addition, Where required, ot more disks` onthe s ame shat't, and-provided with the same elastic hanging, whichprevents them from breaking, thereby making the revolving steam-plow acomplete success, and the quickest mode of preparing the iand forseeding, as well as the best and cheapest ever known; but which proved afailure for three successive years at Contra Costa, California, and theyear following in the other western States, because the ground cuttersor plows were iron and iron hangings and journals without elasticity.

. I do not claimv the revolving hammers as my invention.

What I claim as my invention is- 1. The concentric and elastic hangingfor revolvingA hammers, picks, ground-cutters,

thrashing-machines, Src., as set. forth and de-l scribed.

2. The rubber spring around the journal of the pin on which the hammers,picks, and cutters swing, forming a part of the journal-box, to preventthe machine from breaking' by blows, jars, or concussion.

3. The spring from heel to heel ofthe hammer-handle or shank, across orto the center of the disks, or both combined, to keep the hammers,picks, cutters, thrashers, and beaters in a working position.

. GOLDSBURY H. POND. Witnesses: f

MARY (J. SAWTELLE, H. M. POND.

